B-Roll for playback during webcast, "Tundra and Climate Change with Steve Hastings," on 5/24/08. Footage includes shots of data gathering, facilities and landscape at the Barrow Environmental Observatory.

Join Mary Miller in conversation with Mark Serreze, Senior Research Scientist at the National Snow and Ice Data Center, as they discuss recent dramatic decreases in Arctic sea ice and what that means for global climate stability.

Webcasts made possible through
the generosity of the Gordon and Betty Moore Foundation, The Jim Clark
Endowment for Internet Education, the McBean Family Foundation,.and the Corporation for Educational Networks Initiatives in California (CENIC).